Catalysis Letters

, Volume 121, Issue 3, pp 219–225

Heterogeneous Mercury Reaction on a Selective Catalytic Reduction (SCR) Catalyst

  • Yujin Eom
  • Seok Ho Jeon
  • Thanh An Ngo
  • Jinsoo Kim
  • Tai Gyu Lee
Article

DOI: 10.1007/s10562-007-9317-0

Cite this article as:
Eom, Y., Jeon, S.H., Ngo, T.A. et al. Catal Lett (2008) 121: 219. doi:10.1007/s10562-007-9317-0

Abstract

The heterogeneous mercury reaction mechanism, reactions among elemental mercury (Hg0) and simulated flue gas across laboratory-scale selective catalytic reduction (SCR) reactor system was studied. The surface of SCR catalysts used in this study was analyzed to verify the proposed reaction pathways using transmission electron microscopy with energy dispersive X-ray analyses (TEM-EDX) and X-ray photoelectron spectroscopy (XPS). The Langmuir–Hinshelwood mechanism was proven to be most suitable explaining first-layer reaction of Hg0 and HCl on the SCR catalyst. Once the first layer is formed, successive layers of oxidized mercury (HgCl2) are formed, making a multi-layer structure.

Keywords

Heterogeneous mercury reaction Selective catalytic reduction Coal-fired power plant Langmuir–Hinshelwood 

Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Yujin Eom
    • 1
  • Seok Ho Jeon
    • 1
  • Thanh An Ngo
    • 2
  • Jinsoo Kim
    • 2
  • Tai Gyu Lee
    • 1
  1. 1.Department of Chemical EngineeringYonsei UniversitySeoulRepublic of Korea
  2. 2.Department of Chemical EngineeringKyung Hee UniversityGyeonggi-doRepublic of Korea

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